Cannon I and II, USA wind farm facts and numbers

Cannon I and II wind project was installed in California, USA It was finished in 1981 and is owned by Florida Power & Light Company (FPL).

It is near Tehachapi.

See below for data.

Wind farms, as a general rule require wind speeds of 4.5 metres per second or more.

A great location for a project like Cannon I and II might have a near constant flow of non-turbulent wind throughout the year, with a minimum chances of abrupt effective bursts of wind. An important factor of turbine siting is furthermore access to local demand or transmission capaTehachapi.

Before construction, Cannon I and II was probably screened on the basis of a wind atlas, and validated with wind measurements. Meteorological wind data alone is usually not adequate for correct siting of a large wind power project.

Assortment of site-specific data for wind speed and direction could have been vital to determining site potential to be able to fund the project. Local winds are often supervised for a year or more, and comprehensive wind maps created before wind generators are set up.

The wind blows sooner at greater altitudes due to the reduced effect of drag. The rise in velocity with altitude is most dramatic near the surface and is impacted by landscape, surface roughness, and upwind obstacles such as trees or buildings. Velocity boosts with altitude and is also more obvious near land and is changed by landscape, surface and hurdles.

Wind speeds increasing with altitude is part of a wind energy law. This Californias wind speed rises with the 7th root of altitude. Increasing the height of a turbine, then, enhances the predicted wind speeds by 10%, and the predicted power by 34%.

In general, a range of 7D (7 × Rotor Diameter of the Wind Turbine) is scheduled between each turbine in a fully developed wind farm. But this is not always the situation in hilly areas.

Individual turbines at Cannon I and II are interconnected with a medium voltage (usually 34.5 kV) power collection system and communications network.

At a substation, this particular medium-voltage electric current is enhanced in voltage using a transformer for link with the high voltage transmission system. Building of a land-based wind farm requires installation of the collector system and substation, and perhaps roads to each turbine site.